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| author |   Sowmini Varadhan <sowmini.varadhan@oracle.com> | 2015-10-13 10:54:01 -0400 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-14 22:23:38 +0800 |
| commit | 62f57d05e287e950c6e1246b1dba08e12985195a (patch) | |
| tree | e1db73de0c2d95dff6ce1e43909662a31ccc1f99 /scripts | |
| parent | crypto: ux500 - Use devm_xxx() managed function (diff) | |
| download | linux-dev-62f57d05e287e950c6e1246b1dba08e12985195a.tar.xz linux-dev-62f57d05e287e950c6e1246b1dba08e12985195a.zip | |
crypto: pkcs7 - Fix unaligned access in pkcs7_verify()
On sparc, we see unaligned access messages on each modprobe[-r]:
Kernel unaligned access at TPC[6ad9b4] pkcs7_verify [..]
Kernel unaligned access at TPC[6a5484] crypto_shash_finup [..]
Kernel unaligned access at TPC[6a5390] crypto_shash_update [..]
Kernel unaligned access at TPC[10150308] sha1_sparc64_update [..]
Kernel unaligned access at TPC[101501ac] __sha1_sparc64_update [..]
These ware triggered by mod_verify_sig() invocations of pkcs_verify(), and
are are being caused by an unaligned desc at (sha1, digest_size is 0x14)
desc = digest + digest_size;
To fix this, pkcs7_verify needs to make sure that desc is pointing
at an aligned value past the digest_size, and kzalloc appropriately,
taking alignment values into consideration.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions